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Medium severity · published Aug 17, 2021
CVE-2021-39250
Invision Community (aka IPS Community Suite or IP-Board) before 4.6.5.1 allows stored XSS, with resultant code execution, because an uploaded file can be placed in an IFRAME…
5.4
CVSS
0.8%
EPSS
No
On KEV
Description
Invision Community (aka IPS Community Suite or IP-Board) before 4.6.5.1 allows stored XSS, with resultant code execution, because an uploaded file can be placed in an IFRAME element within user-generated content. For code execution, the attacker can rely on the ability of an admin to install widgets, disclosure of the admin session ID in a Referer header, and the ability of an admin to use the templating engine (e.g., Edit HTML).
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 57% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IP
Invision Power Board · Invisioncommunity
before 4.6.5.1 · source: NVD
Affected product
IP
Invision Power Board
Invisioncommunity
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-39250
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-39250
Release Notes
https://invisioncommunity.com/release-notes/4651-r102/
Exploit
https://ssd-disclosure.com/ssd-advisory-ip-board-stored-xss-to-rce-chain/
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